Wideband signal detection by employing differential sampling rates

A wideband electronic warfare digital receiver design is proposed. The design utilizes the frame-based FFT algorithm commonly implemented in traditional electronic warfare (EW) encoder design [1]. The frequency coverage in traditional digital receiver designs is limited to a single Nyquist zone due to the desire to eliminate aliasing effects from multiple Nyquist zones that generate frequency ambiguities. The proposed design is based on a two-channel structure that allows M Nyquist.